Dwagons can be "plated" (armored, like horse barding). It is unclear how this is done: Fabrication, randomly when popped, a shmucker-costing upgrade, etc. It is also unknown whether it is a permanent or temporary upgrade, or if the plating can be moved from one dwagon to another, or whether it is in fact a natural shell which individual dwagons can grow upon reaching a certain level.

Level three and above Cities of Gobwin Knob can Pop most types of dwagons.WoT-6051503 As of now, no other types are known.

Dwagons are incapable of carrying Heavy units as seen when Parson orders a yellow Dragon to let him mount it only to fall slowly to the ground.

First Appearance

Speculation

Known Dwagon Users

So far the only faction known to use Dwagons is the Gobwin Knob faction led by Stanley the Tool.
It is repeatedly stated that he controls them through the use of the Arkenhammer and it may be they are not normally a faction unit.